From f215e02bf85f68d3a6106c2a1f4f7f063f819064 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:17:27 +0200 Subject: Adding upstream version 7.0.14-dfsg. Signed-off-by: Daniel Baumann --- src/libs/softfloat-3e/testfloat/source/random.c | 138 ++++++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100644 src/libs/softfloat-3e/testfloat/source/random.c (limited to 'src/libs/softfloat-3e/testfloat/source/random.c') diff --git a/src/libs/softfloat-3e/testfloat/source/random.c b/src/libs/softfloat-3e/testfloat/source/random.c new file mode 100644 index 00000000..715c8cc1 --- /dev/null +++ b/src/libs/softfloat-3e/testfloat/source/random.c @@ -0,0 +1,138 @@ + +/*============================================================================ + +This C source file is part of TestFloat, Release 3e, a package of programs for +testing the correctness of floating-point arithmetic complying with the IEEE +Standard for Floating-Point, by John R. Hauser. + +Copyright 2011, 2012, 2013, 2014 The Regents of the University of California. +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions, and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions, and the following disclaimer in the documentation + and/or other materials provided with the distribution. + + 3. Neither the name of the University nor the names of its contributors may + be used to endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY +EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE +DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +=============================================================================*/ + +#include +#include +#include "platform.h" +#include "random.h" + +uint_fast8_t random_ui8( void ) +{ + + return rand()>>4 & 0xFF; + +} + +uint_fast16_t random_ui16( void ) +{ + + return (rand() & 0x0FF0)<<4 | (rand()>>4 & 0xFF); + +} + +uint_fast32_t random_ui32( void ) +{ + + return + (uint_fast32_t) (rand() & 0x0FF0)<<20 + | (uint_fast32_t) (rand() & 0x0FF0)<<12 + | (rand() & 0x0FF0)<<4 + | (rand()>>4 & 0xFF); + +} + +uint_fast64_t random_ui64( void ) +{ + + return (uint_fast64_t) random_ui32()<<32 | random_ui32(); + +} + +uint_fast8_t randomN_ui8( uint_fast8_t N ) +{ + uint_fast8_t scale, z; + + scale = 0; + while ( N < 0x80 ) { + ++scale; + N <<= 1; + } + do { + z = random_ui8(); + } while ( N <= z ); + return z>>scale; + +} + +uint_fast16_t randomN_ui16( uint_fast16_t N ) +{ + uint_fast16_t scale, z; + + scale = 0; + while ( N < 0x8000 ) { + ++scale; + N <<= 1; + } + do { + z = random_ui16(); + } while ( N <= z ); + return z>>scale; + +} + +uint_fast32_t randomN_ui32( uint_fast32_t N ) +{ + uint_fast32_t scale, z; + + scale = 0; + while ( N < 0x8000 ) { + ++scale; + N <<= 1; + } + do { + z = random_ui32(); + } while ( N <= z ); + return z>>scale; + +} + +uint_fast64_t randomN_ui64( uint_fast64_t N ) +{ + uint_fast64_t scale, z; + + scale = 0; + while ( N < 0x8000 ) { + ++scale; + N <<= 1; + } + do { + z = random_ui64(); + } while ( N <= z ); + return z>>scale; + +} + -- cgit v1.2.3